'''初始化包'''
import matplotlib.pyplot as plt
import random
import math
import numpy as np
import pandas as pd
from mpl_toolkits.mplot3d import Axes3D
from matplotlib import cm

plt.rcParams['font.sans-serif'] = ['SimHei'] # 替换sans-serif字体
plt.rcParams['axes.unicode_minus'] = False   # 解决坐标轴负数的负号显示问题
